TW200726151A - A control method for producing a ramp of output power and a transmitter utilizing the same - Google Patents
A control method for producing a ramp of output power and a transmitter utilizing the sameInfo
- Publication number
- TW200726151A TW200726151A TW095147878A TW95147878A TW200726151A TW 200726151 A TW200726151 A TW 200726151A TW 095147878 A TW095147878 A TW 095147878A TW 95147878 A TW95147878 A TW 95147878A TW 200726151 A TW200726151 A TW 200726151A
- Authority
- TW
- Taiwan
- Prior art keywords
- ramp
- transmitter
- power
- output power
- producing
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/0416—Circuits with power amplifiers having gain or transmission power control
Abstract
A transmitter controlling output power to produce a ramp is disclosed in the present specification. The transmitter comprises a base band module, a transmitter module, and a power amplifier. The base band module receives a power control level, determines a scaling factor according to the power control level, determines a difference between an upper power limit and a lower power limit according to a position on the ramp, and calculates a control signal according to the scaling factor, the lower power limit, and the difference. The transmitter module transmits a data. The power amplifier coupled to the base band module and the transmitter module, outputs the data with the output power corresponding to the control signal.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US75232105P | 2005-12-20 | 2005-12-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200726151A true TW200726151A (en) | 2007-07-01 |
TWI324462B TWI324462B (en) | 2010-05-01 |
Family
ID=38166141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW095147878A TWI324462B (en) | 2005-12-20 | 2006-12-20 | A control method for producing a ramp of output power and a transmitter utilizing the same |
Country Status (3)
Country | Link |
---|---|
US (1) | US7689183B2 (en) |
CN (1) | CN1983854B (en) |
TW (1) | TWI324462B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7970427B2 (en) * | 2007-03-20 | 2011-06-28 | Skyworks Solutions, Inc. | System and method for dynamically improving call connection |
US8023556B2 (en) * | 2007-03-30 | 2011-09-20 | Silicon Laboratories Inc. | Autonomously generating ramp profiles in a transceiver |
CN101442508B (en) * | 2007-11-23 | 2011-05-11 | 中兴通讯股份有限公司 | Method and apparatus for implementing power time curve of zero intermediate frequency TDMA transmitter |
ES2586383T3 (en) * | 2008-06-05 | 2016-10-14 | Optis Wireless Technology, Llc | Method and arrangement in a cellular communications system |
US8391932B2 (en) * | 2009-02-23 | 2013-03-05 | Sierra Wireless, Inc. | Apparatus providing plural wireless transceivers within a desired power budget and associated method |
US8275330B1 (en) * | 2009-09-30 | 2012-09-25 | Rf Micro Devices, Inc. | Radio frequency transmitter energy shifting during ramp-down |
EP3417659B1 (en) | 2016-02-17 | 2022-04-13 | Telefonaktiebolaget LM Ericsson (PUBL) | Systems and methods of providing a guard interval for transmissions in a communication system |
CN113922893B (en) * | 2021-09-29 | 2023-06-23 | 展讯通信(深圳)有限公司 | GSM radio frequency front-end power calibration method and device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5894473A (en) * | 1996-02-29 | 1999-04-13 | Ericsson Inc. | Multiple access communications system and method using code and time division |
JPH09275424A (en) * | 1996-04-04 | 1997-10-21 | Matsushita Electric Ind Co Ltd | Transmitter |
JP2001016116A (en) * | 1999-07-02 | 2001-01-19 | Nec Corp | Portable radio equipment |
US6625227B1 (en) * | 1999-09-30 | 2003-09-23 | Ericsson Inc. | Artificial ramping of transmit power for burst transmissions |
US6784748B1 (en) * | 2000-02-24 | 2004-08-31 | Skyworks Solutions, Inc. | Power amplifying system with supply and bias enhancements |
TW583855B (en) * | 2002-08-22 | 2004-04-11 | Mediatek Inc | Wireless communication device for transmitting RF signals |
-
2006
- 2006-12-20 TW TW095147878A patent/TWI324462B/en active
- 2006-12-20 CN CN2006101686108A patent/CN1983854B/en active Active
- 2006-12-20 US US11/613,211 patent/US7689183B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN1983854B (en) | 2010-05-19 |
US7689183B2 (en) | 2010-03-30 |
TWI324462B (en) | 2010-05-01 |
CN1983854A (en) | 2007-06-20 |
US20070142007A1 (en) | 2007-06-21 |
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